It passes through the Thousand Islands in its final miles and crosses two bridges, both part of the series of bridges known as the Thousand Islands Bridge.
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From here, the freeway heads into the Thousand Islands on the first of several bridges known collectively as the Thousand Islands Bridge.
Canary Islands | Faroe Islands | Solomon Islands | bridge | Channel Islands | Falkland Islands | Marshall Islands | South Shetland Islands | Hawaiian Islands | Pacific Islands | Golden Gate Bridge | Saint Thomas, U.S. Virgin Islands | Aleutian Islands | Cook Islands | Brooklyn Bridge | Balearic Islands | Contract bridge | Sydney Harbour Bridge | London Bridge | British Virgin Islands | Cayman Islands | Channel Islands of California | Andaman Islands | Ryukyu Islands | Tower Bridge | Galápagos Islands | Chatham Islands | Caroline Islands | U.S. Virgin Islands | Northern Mariana Islands |
The Thousand Islands Bridge connects New York State and Ontario by traversing Wellesley Island at the northernmost point of Interstate 81 in Jefferson County and meets Highway 137, which leads to Highway 401.